ANALYSIS OF THE EXISTING SOILS IN THE ROOTSTOCK PLANTATION AND IN THE VINE PLANTATIONS SUPPLYING THE SHOOTS OR CANES IN THE DRĂGĂŞANI VINEYARD

The study was carried out in the years 2023-2024 at SCDVV Drăgăşani, in the plantation of „SO4-4” rootstocks and in the vine plantations supplying the shoots or canes of the „Victoria”, „Alutus”, „Vilarom” and „Crâmpoşie Aromată” grape cultivars. These grape cultivars are considered varieties of certain value, they were created at the Drăgăşani Viticulture and Winemaking Research-Development Station. The object of study of this paper is the soil cover, researched in its maintenance with the other geographical factors in order to establish the agro-productive capacity of the plantations, to highlight the main negative attributes and the ameliorative measures. The study followed the contents of phosphorus, potassium and nitric nitrogen, in three repetitions, the soil samples being taken from the depths of 0-20 cm, 20-40 cm, 40-60 cm from the lower, middle and upper slopes of the plantations, in order to the fertilization corresponding to the fertilizing of the soil from the plantation of SO4-4 rootstocks and from the vine plantations providing of the shoots or canes necessary for the improvement of the production technologies of the viticultural propagation material in the current context of climate change. The samples taken from these plantations were analyzed at OJSPA Râmnicul Vâlcea, Romania.